看来楼主以前常用的是AUTOCAD了!
SW是尺寸驱动的软件与AUTOCAD不同,像这种相切、相交等在SW中称为约束,你可以先随意画好圆和线,然后填加几何关系!
<img src="attachments/dvbbs/2004-3/20043268191982972.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-3/20043268191982972.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
选中圆和线(记得按住CTRL),然后点图上的添加几何关系的图标按钮,然后在左侧的属性树上选则相切即可!
你也可以看SW的帮助,里面讲的很详细! |